Alert archive / Texas / River Flood Warnings in 2016

River Flood Warning 117, NWS Houston/Galveston, TX

April 21, 2016Chambers County, Liberty County, Texas

NWS Houston/Galveston, TX issued this river flood warning at Apr 21, 2016, 3:19 PM CDT for Chambers County, Liberty County, Texas. It took effect at Apr 22, 2016, 7:00 AM CDT. It was in force for 27 days.

The area

The counties it named.

The facts

Issued: Apr 21, 2016, 3:19 PM CDT (20:19 UTC)
In effect from: Apr 22, 2016, 7:00 AM CDT
Expired: May 19, 2016, 9:09 AM CDT
In force: 27 days
Issued by: NWS Houston/Galveston, TX
Area: Storm-based polygon
Flood severity: Minor

Counties Chambers County, TX, Liberty County, TX

The radar

The Houston radar (KHGX), 60 km from the middle of the area, began a volume at 20:21 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Trinity River near Moss Bluff (MBFT2). The gauge peaked at 14.42 ft at May 6, 2016, 7:00 AM CDT.

Action stage: 9.2 ft
Minor stage: 12.2 ft
Moderate stage: 15.2 ft
Major stage: 17.2 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 08067100, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this river flood warning went out at Apr 21, 12:50 PM CDT, 2 hours 29 minutes earlier.

Area forecast discussion, Apr 21, 12:50 PM CDT, 2 hours 29 minutes before

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Hazardous weather outlook, Apr 21, 10:32 AM CDT, 4 hours 47 minutes before

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In the hours before

Special weather statement, Apr 21, 10:43 AM CDT, 4 hours 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1043 AM CDT THU APR 21 2016

TXZ200-213-214-226-227-236>238-211715-
MATAGORDA TX-HARRIS TX-GALVESTON TX-CHAMBERS TX-BRAZORIA TX-
LIBERTY TX-WHARTON TX-FORT BEND TX-
1043 AM CDT THU APR 21 2016

...LINE OF STORMS ADVANCING TOWARD THE COAST...

AT 1037 AM CDT...DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS
ALONG A LINE EXTENDING FROM NEAR CLEVELAND TO DAYTON TO HOUSTON TO
RICHMOND TO NEAR EL CAMPO. MOVEMENT WAS SOUTHEAST AT 30 MPH.
ASSUMING THE CURRENT MOVEMENT HOLDS...THIS LINE SHOULD BE NEAR THE
COAST SHORTLY AFTER NOON.

WINDS GUSTS IN EXCESS OF 30 MPH WILL BE POSSIBLE ALONG THE LEADING
EDGE OF THESE STORMS. LOOK FOR 1/2 TO 1 INCH OF RAIN...WITH
LOCALIZED HIGHER AMOUNTS UNDER THE STRONGEST CELLS. PEA SIZE HAIL
CAN NOT BE RULED OUT EITHER.

LOCATIONS IMPACTED INCLUDE...
PASADENA...PEARLAND...LEAGUE CITY...SUGAR LAND...BAYTOWN...MISSOURI CITY...
GALVESTON ISLAND WEST END...GALVESTON CAUSEWAY...TEXAS CITY...
FRIENDSWOOD...LA PORTE...DEER PARK...ROSENBERG...LAKE JACKSON...ALVIN...
ANGLETON...DICKINSON...STAFFORD...BAY CITY AND SOUTH HOUSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 2955 9439 2947 9436 2932 9464 2915 9485
      2861 9575 2923 9639 2958 9574 2982 9533
      3006 9493 3026 9465 3011 9460 3011 9444
      2989 9444 2989 9436 2956 9435
TIME...MOT...LOC 1537Z 298DEG 27KT 3028 9461 3005 9492 2982 9531 2957
9572 2926 9630

Local storm report, Apr 21, 11:07 AM CDT, 4 hours 12 minutes before

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Local storm report, Apr 21, 12:15 PM CDT, 3 hours 4 minutes before

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Local storm report, Apr 21, 1:27 PM CDT, 1 hour 52 minutes before

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The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 20, 11:53 PM CDT	Areal Flood Warning	HGX	Austin, Colorado, Fort Bend, Harris, Montgomery, Waller and 1 more	24 hr
Apr 21, 8:16 AM CDT	Special Weather Statement	HGX	Austin, Colorado, Grimes, Houston, Montgomery, San Jacinto and 4 more	59 min
Apr 21, 9:11 AM CDT	Special Weather Statement	HGX	Austin, Colorado, Fort Bend, Harris, Liberty, Montgomery and 4 more	94 min
Apr 21, 9:23 AM CDT	Severe Thunderstorm Warning	HGX	Trinity	20 min
Apr 21, 9:44 AM CDT	River Flood Warning	HGX	Trinity, Walker	22 days
Apr 21, 10:16 AM CDT	Special Marine Warning	HGX		89 min
Apr 21, 10:43 AM CDT	Special Weather Statement	HGX	Brazoria, Chambers, Fort Bend, Galveston, Wharton	92 min
Apr 21, 11:21 AM CDT	Areal Flood Advisory	HGX	Liberty	114 min
Apr 21, 11:47 AM CDT	Special Marine Warning	HGX		118 min
Apr 21, 12:50 PM CDT	Special Marine Warning	HGX		25 min
Apr 21, 12:54 PM CDT	Special Marine Warning	HGX		51 min
Apr 21, 2:26 PM CDT	Special Marine Warning	HGX		2 hr

Nearby

River Flood Warnings in Texas, 2016 Every river flood warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.